Attachment for pulp-presses.



J. 0. HUNT.

ATTACHMENT POR PULP PRESSES.

APPLICATION FILED SEPT. 5. 1908.

Patented July 13, 1909.

'2 SHEETS-SHEET l.

wi tneooeo J. 0. HUNT.

ATTACHMENT POR PULP PRESSES.

APlLlGATION FILED SEPT. 5.

Patented July 13, 1909.

2 SHEETS-SHEET 2.

lwcukop l r//z (j. Halli PATENT @FFMEO JOHN O. HUNT, OF GLENS FALLS, NEW YORK.

ATTAemnNT non :eULP-Pnnssns.

Specification of Letters Patent.

patented July 13, 19de.

' Application filed September '5, 1908. Serial No.' 451,834.

in the county of Varren and State of New York, have invented certain new and useful Improvements in Attachments for Pulp- Presses, of which the following is a specification.

This invention comprehends certain -new and useful improvements in means for automatically stripping stock from the press cylinder and for automatically forming the pulp sheet into ai bundle, thereby dispensing with the attendants that are usually employed to tend the presses for this purpose and consequently effecting important economies in the trade.

Vith these and other objectsin view, the invention consists in certain constructions, arrangements and combinations of the parts that 1 shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is to be had to the following descrip tion and accompanying drawings in which:

Figure 1 is a top plan view of a stock folding machine constructed in accordance with my invention; Fig. 2 is a side elevation t rereof: Fig. 3 is a detail sectional view partly in dotted lines illustrating means for automatically guiding the paper pulp after it has accumulated to the predetermined extent upon the discharge cylinder of the press; Fig. 4 is a face view of the cutting mechanism employed; Fig. 5 is a transverse sectional view through the folding table; and, Fig. 6 is a detail sectional View illustrating one of the Weights that are attached to the several leaves of the table so as to permit said leaves to be swung upwardly and inwardly for the folding operation.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

Referring to the drawings, the numeral 1 designates the preferably wooden roller of a pu] press, upon which the paper pulp accumu ates before it is finally cut and discharged from the press.

2 designates a roll which may be operated in any desired way as by frictional engagement with the press roller 1, and 3 designates my improved folding table which is arranged with one edge in proximity to the roll 2 so as to receive the sheet of from the roll.

I have herein shown only the discharge roll of the press proper as the press of itself forms no part of my invention, my invention being, in a sense, an attachment to the press pulp as it is stripped and capable of operating with presses of anyconventional type or design.

The table 3 is supported upon a framework 4 of any desired construction or design and embodies a leaf 5 extending longitudinally thereof next to the press, an opposite leaf 6, a preferably stationary middle section 7, a hinged middle section 8, and hinged end leaves 9 and 1() located between the side leaves 5 and 6 at the ends of the latter. The leaves 5, 6, 9 and 10, as well as the middle section S are all freely mounted upon the sup-- porting framework 4 in such a manner as to permit said leaves and sections to be swung upwardly and inwardly. This hinged mounting of the various leaves and section 8 may be accomplished in, any desired way within the scope of my invention and, in the present instance, as illustrated in Fig. 6, .I have shown as one of said ways a weighted cord 11 designed to swing the leaf backwardly or to an open position after the actuating mechanism has stopped and arranged to permit the leaf as it is swung inwardly u on the sheet-to rise and accommodate itsel to the increasing thickness of the sheet due to the plurality of plies into which it is folded.

Underneath the table 2 is mounted a horizontally disposed gear wheel 12 formed on its lower face. with gear teeth 13 meshing with a bevel pinion 14 on the end of a drive shaft 15, said shaft receiving its motion from any suitable source of power communicated thereto as by the pulley 16 mounted on said shaft and arranged to be held fast thereon by means of a clutch mechanism hereinafter described. In addition to these teeth13, the gear wheel 12 is irovided on its upper face with a number o gear teeth 17. "bese are designed, inthe rotation ofthe gear wheel 12, to successively engage the bevel' pinions 18 19, 20 and 21, mounted respectively upon spindles 18a, 19, 20 and 21a. The spindles just mentioned are journaled in suitable bearings underneath thel table in outwardly' divergiug relation at one corner thereof` as best illustrated in Fig. 1 and the several spindles are respectively provided at their outer ends with preferably grooved pulleys 22 'make two more folds in the sheet.

around which chains 23 extend as illustrated in Fig. 2. The chains 23 also extend around grooved pulleys 24 mounted on the shafts 25 and the said shafts are provided at their ends with crank arms 26 connecting the respective leaves to the middle section 8 of the table in such a manner, as by slotted brackets 27, that the rotation of the shafts 25 in turn will swing the leaves in closing upwardly .an d inwardly. ln order to return the shafts to their normal position after the actuating mechanism has ceased to act thereon, the several shafts are provided at one end with quadrants 28 that are secured fast thereto and weighted cords 29 are secured to said quadrants, as best seen in Fig. 5.

From the foregoing description in connection with the accompanying drawings, it will be understood that as the sheet of pulp is passed onto the table 3 and the gear whee 12 commences to turn, the gear teeth 17 will first engage the pinion 18 and turn the spindle 18a in a direction to swing the leaf 5 up- `wardly and inwardly upon the stationary middle section 7 and its adjoining section to form the first fold in the sheet. As soon as the teeth 17 are disengaged from the pinion 18 the leaf 5 will be swung o en again and in the continued rotation of t e wheel 12, the teeth 17 will next engagethe pinion 19 and turn the spindle 19a 1n a direction to swing the opposite side leaf 6 inwardlyto form the next fold. After this leaf 6 has been swung o en or backward ly again, the enga lement of t e teeth 17 with the pinion 2O w' turn the spindle 20a, and it is to be accordingly noted that the shaft 25 which is secured to the spindle 2Oa has a pulley and belt connection 30 with the 'shaft 25EL for swinging the leaf 9 hence it is evident, that as the shaft 25 turns the leaves 9 and 10- will both bev folded inwardly with their free edges meeting so as to After these leaves 9 and 10 have been swung back to an ino erative osition, the engagement of the teet 17 with) the pinion 21 will finally cause the middle section 8 to swing upwardly and fold downwardl upon the stationary section 7 to comp ete the folded sheet or bundle. y

. lln order tol hold the pulp sheet from vthe roller 1 onto the table 3, and in order also after the bundle is formed to automatically discharge said bundle from the table, and make way for the next sheet to be folded,1 have provided a lurality of sets of s ur wheels 31 mounter in shafts journaled un erneath the table with the spurs projecting u Wardly through the slots 32 formed in t e various leaves and sections of the table. All of these shafts for the spur wheels are geared to move together as by a chain or similar con# necting means 33 and they may receivetheir motion from any desired source of power, traveling, however, 'at the samev surface ea'igeee speed as the roll 2 and preferably receiving their motion directly from said roll.

As vabove stated, my invention comprehends means for automatically cutting the paper pulp from the periphery of the press roller 1,`,and the means employed in the present embodiment of the invention for this purpose com rises a flat face roller 33a mounted in suitab e bearings in the framework ofthe press, the shaft of said roller carrying bracket wheels 34 that are connected by chains 35 to corresponding wheels 36 on the shaft of a knife blade 3S so that as the roller 33 is turned in one direction, the knife blade will be turned against the roller 1 so as to cut the sheet from the roller as the same revolves.

rlhis operation of cutting thesheet is automatic. As soon as the pulp accumulates to a predetermined extent, upon the periphery of the roller 1 it will engage the rounded portion of the roller 33u and cause said roller to turn, and the flat face of said roller is provided so that it may be turned by fric-,tional engagement with the sheet only far enough to cause the proper movement of the knife toward the roller 1. As soon as the knife 38 cuts the sheet the lowermost cut edge will fall upon the leaf 5 and be engaged by the first set of spur wheels and thence be fed over the table and stripped from the roller 1, while as soon as the exposed portion of the periphery of the roller 1 arrives at the roller 33B, said roller will be permitted to rock backwardly or in the reverse direction to carry the knife outwardly to an inoperative osition. This reverse movement of the ro ler 33a may be accomplished by a spring or weight, or any equivalent means. 1n the present instance, 1 have shown a weighted pulley 39 for this purpose.

1n order to automatically start and stop my folding apparatus, the shipper lever 40 of 'the clutch 41 is fulcrumed at 42 and one arm of said lever is connected by a chain or cable 43 with a pulley 44, the said cable being adapted to wind upon said pulley; the pulley 44 is mountedl uponV the shaft and roller 33 and as soon as said roller turns in a direction to move the knife to an Ainoperative position, as above described, the` cable 13 winding upon the pulle all will pull u on the shipper lever 411 and throw the clutc in whereupon the shaft 15 will be started and the movements above described will be effected. At the conclusion of these movements and at the completion of the folding operation, a cam 45 which is secured to the periphery of the wheel 12 will engage the other arm of said lever il@ as best illustrated in Figs. 1 and 2 and push upon said arm whereby to throw the shipperlever in the opposite direction and uncouple the driving wheel 16 from the shaft, the apparatus being thereby stopped. 11s soon as it is started again, it is obvious that bundle that has been formed u on the stationary section 7 of the table ybe moved outwardly and off the leaf 6 preferably onto a traveling belt or apron (not shown) so as to make way for the next sheet to be folded.

Having thus described the invention, what l claim is:

1. The combination with the pulp roll of a paper pulp press of a table arranged in prox-I imity to said roll, means for severing the pulp from the roll and for depositing it upon the table, said table embodying a lurality of leaves, and means for folding said) leaves inwardl. upon the sheet.

2. he combination with the pulp roll of a paper pulp press, of a table arranged in roximity to said roll, means for automatlcally severing the pulp from the roll at a predetermined thickness ol' the pulp, means for depositing the pulp as a sheet upon the table, and means for automatically folding the sheet thereon.

8. The combination with the pulp roll of a paper pul press, of means for automatically severing t e pulp and stripping it from the roll in a sheet at a predetermined thickness of the pulp, a table arranged in proximity to said roll and arranged to receive the sheet therefrom, means for foldinggthe sheet upon said table, and means for automatically starting the folding mechanism upon the deposit of the sheet t ereon.

4. The combination with the p ulp roll of a paper pulp press, of means for automatically severing the pulp and stripping it from the roll in a sheet at a predetermined thickness of the pullp, a table arranged in proximity to said ro and arranged to receive the sieet therefrom, means for folding the sheet.` upon said table, and means for automatically starting the folding mechanism upon the deposit of the sheet on the table and for automatically stopping said mechanism at the completion of t e operation.

5. The combination with the pul roll of a paper pulp press, of a roller arrange in proxirmty to the periphery of said roll and arranged to be rocked by engagement with the pulp on the periphery of said roll at a predetei-mined thickness of said pulp, a. knife blade operatively connected to said roller and arranged to be moved thereby into engagement with the pulp, a folding table arranged in proximity to said roll and designed to receive the pulp therefrom, means for feeding the pulp as a sheet over said table, the table embodying a plurality of leaves, and means for automatically folding said leaves inward ly upon the sheet.

6. The combination with the pulp roll of a paper pulp press, of a table arranged in proximity to said roll, and arranged to receive the sheets therefrom, said table embodying a framework, longitudinally extending side leaves mounted on said framework and arranged to fr -d inwardly thereon, end leaves mounted between the side leaves and arranged to fold inwardly, a stationary middle section, a hinged middle section, said sections being between and in longitudinal alinement with the end leaves, and means for folding first one andthen the other of the side leaves inwardly, next folding the two end leaves inwardly upon the middle sections, and finally folding the hinged middle section inwardly upon the stationary middle section.

7. The combination with the pulp roll of a paper pulp press, of a table arranged in proxinnty to said roll, and arranged to receive the sheets therefrom, said tali-le embodying a plurality of leaves arranged to fold inwardly, shafts with crank arms connected to said leaves to swing the same, spindles mounted underneath the table and operatively connected to said shafts, said spindles carrying pinions, a gear wheel mounted underneath the table and provided with a set of gear teeth adapted to engage the pinions in succession for the purpose specified, and means for turning said gear wheel.

In testimony whereof I allix my signature in presence of two witnesses.

JOHN O. HUNT. [L. s]

Witnesses:

W.. N. WoonsoN, FREDERICK S. STrrT. 

